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Half Ironman (middle distance) in North Wales

Find half ironman (middle distance) in North Wales in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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The totally unique ROC format, from Abersoch Bay to the top of Wales’ highest mountain and back. Swim, Bike, Mountain, Bike, Run; THE ROC WALES is triathlon - tough and redefined.
  • Sat 9 May 2026
  • £250-£270
Pwllheli, Gwynedd, UK

THE ROC WALES

The totally unique ROC format, from Abersoch Bay to the top of Wales’ highest mountain and back. Swim, Bike, Mountain, Bike, Run; THE ROC WALES is triathlon - tough and redefined.

  • Recycling
  • Plastic bottle free
  • Entertainment
  • Music
  • Chip timing
  • Enter online
  • Hilly
  • Mountainous
  • Event village
  • Event expo
  • Coast
  • Mountains
  • Sustainability policy
  • Plastic-free event
  • Age 18 & over
  • 1.5 km sea swimming
  • 100 km road cycling
  • 13 km multi terrain running + 3330 ft ascent
The most iconic multi-sport adventure race in Wales, combining a lake swim, brutal mountain climbs and a demanding run through Snowdonia’s dramatic, awe-inspiring landscape over a Middle distance tri.
  • Sun 14 Jun 2026
  • £239.99-£259.99
Caernarfon, Gwynedd, UK

Slateman Triathlon & Duathlon | Slateman Legend (70.3) Triathlon

The most iconic multi-sport adventure race in Wales, combining a lake swim, brutal mountain climbs and a demanding run through Snowdonia’s dramatic, awe-inspiring landscape over a Middle distance tri.

  • Chip timing
  • Enter online
  • Hilly
  • Mountainous
  • Age 18 & over
  • 1900 m lake swimming
  • 92.6 km road cycling + 4297 ft ascent
  • 23.1 km trail running + 2723 ft ascent
The Legend returns to Bala for the first time since 2017 and it’s ready to challenge and inspire like never before. This is your chance to go further, dig deeper, and achieve something extraordinary.
  • Sun 6 Sep 2026
  • £239.99-£259.99
Bala, Gwynedd, UK

Triathlon Y Bala | Legend (70.3) Middle Distance

The Legend returns to Bala for the first time since 2017 and it’s ready to challenge and inspire like never before. This is your chance to go further, dig deeper, and achieve something extraordinary.

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 18 & over
  • 1900 m lake swimming
  • 85 km road cycling
  • 21.1 km road running

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